biotic balance

См. также в других словарях:

• balance of nature — a state of equilibrium in nature due to the constant interaction of the whole biotic and environmental complex, interference with this equilibrium (as by human intervention) being often extremely destructive compare erosion * * * population… …   Useful english dictionary

• agricultural sciences, the — Introduction  sciences dealing with food and fibre production and processing. They include the technologies of soil cultivation, crop cultivation and harvesting, animal production, and the processing of plant and animal products for human… …   Universalium

• influent — /in flooh euhnt/, adj. 1. flowing in. n. 2. a tributary. 3. Ecol. a plant or animal that has an important effect on the biotic balance in a community. [1400 50; late ME < L influent (s. of influens) inflowing. See IN 2, FLUENT] * * * …   Universalium

• influent — in•flu•ent [[t]ˈɪn flu ənt[/t]] adj. 1) flowing in 2) a tributary 3) ecl Ecol. an animal, plant, fungus, etc., that has an important effect on the biotic balance in a community • Etymology: 1400–50; late ME < L influere to flow in …   From formal English to slang

• human disease — Introduction       an impairment of the normal state of a human being that interrupts or modifies its vital functions. health versus disease       Before human disease can be discussed, the meanings of the terms health, physical fitness, illness …   Universalium

• Ecology — For other uses, see Ecology (disambiguation). Ecology …   Wikipedia

• biosphere — biospheric /buy euh sfer ik/, adj. /buy euh sfear /, n. 1. the part of the earth s crust, waters, and atmosphere that supports life. 2. the ecosystem comprising the entire earth and the living organisms that inhabit it. [1895 1900; < G Biosphäre; …   Universalium

• Plant defense against herbivory — Poison ivy produces urushiol to protect the plant from herbivores. In humans this chemical produces an allergic skin rash, known as urushiol induced contact dermatitis …   Wikipedia

• Nutrient cycle — …   Wikipedia

• Biogeochemical cycle — A commonly cited example is the water cycle. In ecology and Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical element or molecule moves through both biotic (biosphere) and… …   Wikipedia

• Invasive species — See also: List of invasive species, Introduced species, Pest (organism), and Weed North American beavers constitute an invasive species in Tierra del Fuego, where they have a substantial impact on landscape and local ecology through their… …   Wikipedia